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- W4220719673 abstract "In this study, two stable Fe(II) coordination compounds, namely [Fe(Hdtp)2](H2O)3 (1) and [Fe(dtp)(H2O)3](H2O)0.5 (2) (H2dtp is 4'-(3,5- dicarboxyphenyl)-2,2':6′,2″-terpyridine), are constructed by hydrothermal reaction of H2dtp with different iron source (Fe(II) and Fe powder) under acidic condition, which afford the activated sites of carboxylic group and Lewis acid sites exist in 1 and 2, respectively. The catalytic activity of 2 is found superior to 1 when used as catalyst for the Friedel-Crafts reaction of β-nitroalkenes and indoles under ambient conditions. The high activity of 2 may be attributed to the sufficient coordination sites in Fe(II) for intermediate formation by coordination interaction with β-nitroalkenes, which enhance the electrophilic character of β-nitroalkenes and further facilitate the attack from the indole. The catalyst 2 is high functional group and solvent tolerance, and can be readily recycled and reused at least 3 times without loss of catalytic activity significantly. This work provides a new strategy for the synthesis of indole alkaloids under ambient conditions." @default.
- W4220719673 created "2022-04-03" @default.
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- W4220719673 date "2022-06-01" @default.
- W4220719673 modified "2023-10-12" @default.
- W4220719673 title "Efficient heterogeneous catalyst of Fe(II)-based coordination complexes for Friedel-Crafts alkylation reaction" @default.
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- W4220719673 doi "https://doi.org/10.1016/j.jssc.2022.123045" @default.
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